Preheat the oven to 400°F and line a baking sheet with parchment paper. Toss the sweet potatoes with a drizzle of olive oil and a few pinches of salt and pepper. Roast until golden brown, 25 to 35 minutes.
Toss the roasted sweet potatoes with the chickpeas, quinoa, scallions, cabbage, feta, almonds, and salad greens. Drizzle with olive oil, the lemon juice, and a few generous pinches of salt and pepper. Add more lemon juice and season to taste. Toss and serve in bowls.
